I'm trying to read an .xlsx file from blob storage but the only option I have is to read it as a string from the binding parameter.
[BlobInput("templates/myTemplate.xlsx", Connection = "StorageAccountConnStr")] string template
To load the .xlsx file I need to make a MemoryStream. Thus I wrote:
var templateBytes = Encoding.Unicode.GetBytes(template);
var templateStream = new MemoryStream(templateBytes);
It fails and tells me the file might be corrupt.
Any ideas how to read properly an .xlsx file from blob storage as an input?
Turns out, except string, byte[] is supported.
Therefore I could be able to read and open my file. Azure documentation does not mention it yet.
Related
I have an api in which I generate an XLSX file with some data, and then transform it to base64 and return it to the client.
I'm having trouble transforming the XLSX to Base64, the function returns the string in base64, but when I check it with tools like base64guru or similar, it is converted to a zip file and the XLSX is completely lost.
I'm using the typical method to convert to base64, I don't have anything strange, it just transforms it into a zip and I don't know why.
Here is the parser code:
const path = `./some_path/${randomName}.xlsx`;
XLSX.writeFile(workbook, path); //<<-- the file is generated and i can open it with excel and works
fine.
const base64String = fs.readFileSync(path).toString('base64'); //this return the base64 zip file :S
Does anyone know why this happens and how can I solve it?
Here i put a base64 generated string:
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
There is nothing wrong here. You can rename the decoded Base64 file to .xlsx and open it with Excel.
XLSX is in fact a zip-file with a certain structure inside.
Office Open XML (also informally known as OOXML or Microsoft Open XML (MOX))[3] is a zipped, XML-based file format developed by Microsoft for representing spreadsheets, charts, presentations and word processing documents
(Source: https://en.wikipedia.org/wiki/Office_Open_XML)
The base64 website did it's best to identify the file format and found the first 4 bytes
50 4b 03 04 ("PK��")
which identifies it as a ZIP file.(originally PKZIP, starting with the initials of the creator)
If you keep the .zip extension, you can open it with any unzip tool or directly in the Windows Explorer to see the internal structure of it.
With a few lines JavaScript you can identify the OpenXML content type of the OpenXML/ZIP file:
var base64input = 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0PSJIYW50IiB0eXBlZmFjZT0i5paw57Sw5piO6auUIi8+PGE6Zm9udCBzY3JpcHQ9IkFyYWIiIHR5cGVmYWNlPSJUaW1lcyBOZXcgUm9tYW4iLz48YTpmb250IHNjcmlwdD0iSGViciIgdHlwZWZhY2U9IlRpbWVzIE5ldyBSb21hbiIvPjxhOmZvbnQgc2NyaXB0PSJUaGFpIiB0eXBlZmFjZT0iVGFob21hIi8+PGE6Zm9udCBzY3JpcHQ9IkV0aGkiIHR5cGVmYWNlPSJOeWFsYSIvPjxhOmZvbnQgc2NyaXB0PSJCZW5nIiB0eXBlZmFjZT0iVnJpbmRhIi8+PGE6Zm9udCBzY3JpcHQ9Ikd1anIiIHR5cGVmYWNlPSJTaHJ1dGkiLz48YTpmb250IHNjcmlwdD0iS2htciIgdHlwZWZhY2U9Ik1vb2xCb3JhbiIvPjxhOmZvbnQgc2NyaXB0PSJLbmRhIiB0eXBlZmFjZT0iVHVuZ2EiLz48YTpmb250IHNjcmlwdD0iR3VydSIgdHlwZWZhY2U9IlJhYXZpIi8+PGE6Zm9udCBzY3JpcHQ9IkNhbnMiIHR5cGVmYWNlPSJFdXBoZW1pYSIvPjxhOmZvbnQgc2NyaXB0PSJDaGVyIiB0eXBlZmFjZT0iUGxhbnRhZ2VuZXQgQ2hlcm9rZWUiLz48YTpmb250IHNjcmlwdD0iWWlpaSIgdHlwZWZhY2U9Ik1pY3Jvc29mdCBZaSBCYWl0aSIvPjxhOmZvbnQgc2NyaXB0PSJUaWJ0IiB0eXBlZmFjZT0iTWljcm9zb2Z0IEhpbWFsYXlhIi8+PGE6Zm9udCBzY3JpcHQ9IlRoYWEiIHR5cGVmYWNlPSJNViBCb2xpIi8+PGE6Zm9udCBzY3JpcHQ9IkRldmEiIHR5cGVmYWNlPSJNYW5nYWwiLz48YTpmb250IHNjcmlwdD0iVGVsdSIgdHlwZWZhY2U9IkdhdXRhbWkiLz48YTpmb250IHNjcmlwdD0iVGFtbCIgdHlwZWZhY2U9IkxhdGhhIi8+PGE6Zm9udCBzY3JpcHQ9IlN5cmMiIHR5cGVmYWNlPSJFc3RyYW5nZWxvIEVkZXNzYSIvPjxhOmZvbnQgc2NyaXB0PSJPcnlhIiB0eXBlZmFjZT0iS2FsaW5nYSIvPjxhOmZvbnQgc2NyaXB0PSJNbHltIiB0eXBlZmFjZT0iS2FydGlrYSIvPjxhOmZvbnQgc2NyaXB0PSJMYW9vIiB0eXBlZmFjZT0iRG9rQ2hhbXBhIi8+PGE6Zm9udCBzY3JpcHQ9IlNpbmgiIHR5cGVmYWNlPSJJc2tvb2xhIFBvdGEiLz48YTpmb250IHNjcmlwdD0iTW9uZyIgdHlwZWZhY2U9Ik1vbmdvbGlhbiBCYWl0aSIvPjxhOmZvbnQgc2NyaXB0PSJWaWV0IiB0eXBlZmFjZT0iVGltZXMgTmV3IFJvbWFuIi8+PGE6Zm9udCBzY3JpcHQ9IlVpZ2giIHR5cGVmYWNlPSJNaWNyb3NvZnQgVWlnaHVyIi8+PGE6Zm9udCBzY3JpcHQ9Ikdlb3IiIHR5cGVmYWNlPSJTeWxmYWVuIi8+PC9hOm1ham9yRm9udD48YTptaW5vckZvbnQ+PGE6bGF0aW4gdHlwZWZhY2U9IkNhbGlicmkiLz48YTplYSB0eXBlZmFjZT0iIi8+PGE6Y3MgdHlwZWZhY2U9IiIvPjxhOmZvbnQgc2NyaXB0PSJKcGFuIiB0eXBlZmFjZT0i77yt77yzIO+8sOOCtOOCt+ODg+OCryIvPjxhOmZvbnQgc2NyaXB0PSJIYW5nIiB0eXBlZmFjZT0i66eR7J2AIOqzoOuUlSIvPjxhOmZvbnQgc2NyaXB0PSJIYW5zIiB0eXBlZmFjZT0i5a6L5L2TIi8+PGE6Zm9udCBzY3JpcHQ9IkhhbnQiIHR5cGVmYWNlPSLmlrDntLDmmI7pq5QiLz48YTpmb250IHNjcmlwdD0iQXJhYiIgdHlwZWZhY2U9IkFyaWFsIi8+PGE6Zm9udCBzY3JpcHQ9IkhlYnIiIHR5cGVmYWNlPSJBcmlhbCIvPjxhOmZvbnQgc2NyaXB0PSJUaGFpIiB0eXBlZmFjZT0iVGFob21hIi8+PGE6Zm9udCBzY3JpcHQ9IkV0aGkiIHR5cGVmYWNlPSJOeWFsYSIvPjxhOmZvbnQgc2NyaXB0PSJCZW5nIiB0eXBlZmFjZT0iVnJpbmRhIi8+PGE6Zm9udCBzY3JpcHQ9Ikd1anIiIHR5cGVmYWNlPSJTaHJ1dGkiLz48YTpmb250IHNjcmlwdD0iS2htciIgdHlwZWZhY2U9IkRhdW5QZW5oIi8+PGE6Zm9udCBzY3JpcHQ9IktuZGEiIHR5cGVmYWNlPSJUdW5nYSIvPjxhOmZvbnQgc2NyaXB0PSJHdXJ1IiB0eXBlZmFjZT0iUmFhdmkiLz48YTpmb250IHNjcmlwdD0iQ2FucyIgdHlwZWZhY2U9IkV1cGhlbWlhIi8+PGE6Zm9udCBzY3JpcHQ9IkNoZXIiIHR5cGVmYWNlPSJQbGFudGFnZW5ldCBDaGVyb2tlZSIvPjxhOmZvbnQgc2NyaXB0PSJZaWlpIiB0eXBlZmFjZT0iTWljcm9zb2Z0IFlpIEJhaXRpIi8+PGE6Zm9udCBzY3JpcHQ9IlRpYnQiIHR5cGVmYWNlPSJNaWNyb3NvZnQgSGltYWxheWEiLz48YTpmb250IHNjcmlwdD0iVGhhYSIgdHlwZWZhY2U9Ik1WIEJvbGkiLz48YTpmb250IHNjcmlwdD0iRGV2YSIgdHlwZWZhY2U9Ik1hbmdhbCIvPjxhOmZvbnQgc2NyaXB0PSJUZWx1IiB0eXBlZmFjZT0iR2F1dGFtaSIvPjxhOmZvbnQgc2NyaXB0PSJUYW1sIiB0eXBlZmFjZT0iTGF0aGEiLz48YTpmb250IHNjcmlwdD0iU3lyYyIgdHlwZWZhY2U9IkVzdHJhbmdlbG8gRWRlc3NhIi8+PGE6Zm9udCBzY3JpcHQ9Ik9yeWEiIHR5cGVmYWNlPSJLYWxpbmdhIi8+PGE6Zm9udCBzY3JpcHQ9Ik1seW0iIHR5cGVmYWNlPSJLYXJ0aWthIi8+PGE6Zm9udCBzY3JpcHQ9Ikxhb28iIHR5cGVmYWNlPSJEb2tDaGFtcGEiLz48YTpmb250IHNjcmlwdD0iU2luaCIgdHlwZWZhY2U9Iklza29vbGEgUG90YSIvPjxhOmZvbnQgc2NyaXB0PSJNb25nIiB0eXBlZmFjZT0iTW9uZ29saWFuIEJhaXRpIi8+PGE6Zm9udCBzY3JpcHQ9IlZpZXQiIHR5cGVmYWNlPSJBcmlhbCIvPjxhOmZvbnQgc2NyaXB0PSJVaWdoIiB0eXBlZmFjZT0iTWljcm9zb2Z0IFVpZ2h1ciIvPjxhOmZvbnQgc2NyaXB0PSJHZW9yIiB0eXBlZmFjZT0iU3lsZmFlbiIvPjwvYTptaW5vckZvbnQ+PC9hOmZvbnRTY2hlbWU+PGE6Zm10U2NoZW1lIG5hbWU9Ik9mZmljZSI+PGE6ZmlsbFN0eWxlTHN0PjxhOnNvbGlkRmlsbD48YTpzY2hlbWVDbHIgdmFsPSJwaENsciIvPjwvYTpzb2xpZEZpbGw+PGE6Z3JhZEZpbGwgcm90V2l0aFNoYXBlPSIxIj48YTpnc0xzdD48YTpncyBwb3M9IjAiPjxhOnNjaGVtZUNsciB2YWw9InBoQ2xyIj48YTp0aW50IHZhbD0iNTAwMDAiLz48YTpzYXRNb2QgdmFsPSIzMDAwMDAiLz48L2E6c2NoZW1lQ2xyPjwvYTpncz48YTpncyBwb3M9IjM1MDAwIj48YTpzY2hlbWVDbHIgdmFsPSJwaENsciI+PGE6dGludCB2YWw9IjM3MDAwIi8+PGE6c2F0TW9kIHZhbD0iMzAwMDAwIi8+PC9hOnNjaGVtZUNscj48L2E6Z3M+PGE6Z3MgcG9zPSIxMDAwMDAiPjxhOnNjaGVtZUNsciB2YWw9InBoQ2xyIj48YTp0aW50IHZhbD0iMTUwMDAiLz48YTpzYXRNb2QgdmFsPSIzNTAwMDAiLz48L2E6c2NoZW1lQ2xyPjwvYTpncz48L2E6Z3NMc3Q+PGE6bGluIGFuZz0iMTYyMDAwMDAiIHNjYWxlZD0iMSIvPjwvYTpncmFkRmlsbD48YTpncmFkRmlsbCByb3RXaXRoU2hhcGU9IjEiPjxhOmdzTHN0PjxhOmdzIHBvcz0iMCI+PGE6c2NoZW1lQ2xyIHZhbD0icGhDbHIiPjxhOnRpbnQgdmFsPSIxMDAwMDAiLz48YTpzaGFkZSB2YWw9IjEwMDAwMCIvPjxhOnNhdE1vZCB2YWw9IjEzMDAwMCIvPjwvYTpzY2hlbWVDbHI+PC9hOmdzPjxhOmdzIHBvcz0iMTAwMDAwIj48YTpzY2hlbWVDbHIgdmFsPSJwaENsciI+PGE6dGludCB2YWw9IjUwMDAwIi8+PGE6c2hhZGUgdmFsPSIxMDAwMDAiLz48YTpzYXRNb2QgdmFsPSIzNTAwMDAiLz48L2E6c2NoZW1lQ2xyPjwvYTpncz48L2E6Z3NMc3Q+PGE6bGluIGFuZz0iMTYyMDAwMDAiIHNjYWxlZD0iMCIvPjwvYTpncmFkRmlsbD48L2E6ZmlsbFN0eWxlTHN0PjxhOmxuU3R5bGVMc3Q+PGE6bG4gdz0iOTUyNSIgY2FwPSJmbGF0IiBjbXBkPSJzbmciIGFsZ249ImN0ciI+PGE6c29saWRGaWxsPjxhOnNjaGVtZUNsciB2YWw9InBoQ2xyIj48YTpzaGFkZSB2YWw9Ijk1MDAwIi8+PGE6c2F0TW9kIHZhbD0iMTA1MDAwIi8+PC9hOnNjaGVtZUNscj48L2E6c29saWRGaWxsPjxhOnByc3REYXNoIHZhbD0ic29saWQiLz48L2E6bG4+PGE6bG4gdz0iMjU0MDAiIGNhcD0iZmxhdCIgY21wZD0ic25nIiBhbGduPSJjdHIiPjxhOnNvbGlkRmlsbD48YTpzY2hlbWVDbHIgdmFsPSJwaENsciIvPjwvYTpzb2xpZEZpbGw+PGE6cHJzdERhc2ggdmFsPSJzb2xpZCIvPjwvYTpsbj48YTpsbiB3PSIzODEwMCIgY2FwPSJmbGF0IiBjbXBkPSJzbmciIGFsZ249ImN0ciI+PGE6c29saWRGaWxsPjxhOnNjaGVtZUNsciB2YWw9InBoQ2xyIi8+PC9hOnNvbGlkRmlsbD48YTpwcnN0RGFzaCB2YWw9InNvbGlkIi8+PC9hOmxuPjwvYTpsblN0eWxlTHN0PjxhOmVmZmVjdFN0eWxlTHN0PjxhOmVmZmVjdFN0eWxlPjxhOmVmZmVjdExzdD48YTpvdXRlclNoZHcgYmx1clJhZD0iNDAwMDAiIGRpc3Q9IjIwMDAwIiBkaXI9IjU0MDAwMDAiIHJvdFdpdGhTaGFwZT0iMCI+PGE6c3JnYkNsciB2YWw9IjAwMDAwMCI+PGE6YWxwaGEgdmFsPSIzODAwMCIvPjwvYTpzcmdiQ2xyPjwvYTpvdXRlclNoZHc+PC9hOmVmZmVjdExzdD48L2E6ZWZmZWN0U3R5bGU+PGE6ZWZmZWN0U3R5bGU+PGE6ZWZmZWN0THN0PjxhOm91dGVyU2hkdyBibHVyUmFkPSI0MDAwMCIgZGlzdD0iMjMwMDAiIGRpcj0iNTQwMDAwMCIgcm90V2l0aFNoYXBlPSIwIj48YTpzcmdiQ2xyIHZhbD0iMDAwMDAwIj48YTphbHBoYSB2YWw9IjM1MDAwIi8+PC9hOnNyZ2JDbHI+PC9hOm91dGVyU2hkdz48L2E6ZWZmZWN0THN0PjwvYTplZmZlY3RTdHlsZT48YTplZmZlY3RTdHlsZT48YTplZmZlY3RMc3Q+PGE6b3V0ZXJTaGR3IGJsdXJSYWQ9IjQwMDAwIiBkaXN0PSIyMzAwMCIgZGlyPSI1NDAwMDAwIiByb3RXaXRoU2hhcGU9IjAiPjxhOnNyZ2JDbHIgdmFsPSIwMDAwMDAiPjxhOmFscGhhIHZhbD0iMzUwMDAiLz48L2E6c3JnYkNscj48L2E6b3V0ZXJTaGR3PjwvYTplZmZlY3RMc3Q+PGE6c2NlbmUzZD48YTpjYW1lcmEgcHJzdD0ib3J0aG9ncmFwaGljRnJvbnQiPjxhOnJvdCBsYXQ9IjAiIGxvbj0iMCIgcmV2PSIwIi8+PC9hOmNhbWVyYT48YTpsaWdodFJpZyByaWc9InRocmVlUHQiIGRpcj0idCI+PGE6cm90IGxhdD0iMCIgbG9uPSIwIiByZXY9IjEyMDAwMDAiLz48L2E6bGlnaHRSaWc+PC9hOnNjZW5lM2Q+PGE6c3AzZD48YTpiZXZlbFQgdz0iNjM1MDAiIGg9IjI1NDAwIi8+PC9hOnNwM2Q+PC9hOmVmZmVjdFN0eWxlPjwvYTplZmZlY3RTdHlsZUxzdD48YTpiZ0ZpbGxTdHlsZUxzdD48YTpzb2xpZEZpbGw+PGE6c2NoZW1lQ2xyIHZhbD0icGhDbHIiLz48L2E6c29saWRGaWxsPjxhOmdyYWRGaWxsIHJvdFdpdGhTaGFwZT0iMSI+PGE6Z3NMc3Q+PGE6Z3MgcG9zPSIwIj48YTpzY2hlbWVDbHIgdmFsPSJwaENsciI+PGE6dGludCB2YWw9IjQwMDAwIi8+PGE6c2F0TW9kIHZhbD0iMzUwMDAwIi8+PC9hOnNjaGVtZUNscj48L2E6Z3M+PGE6Z3MgcG9zPSI0MDAwMCI+PGE6c2NoZW1lQ2xyIHZhbD0icGhDbHIiPjxhOnRpbnQgdmFsPSI0NTAwMCIvPjxhOnNoYWRlIHZhbD0iOTkwMDAiLz48YTpzYXRNb2QgdmFsPSIzNTAwMDAiLz48L2E6c2NoZW1lQ2xyPjwvYTpncz48YTpncyBwb3M9IjEwMDAwMCI+PGE6c2NoZW1lQ2xyIHZhbD0icGhDbHIiPjxhOnNoYWRlIHZhbD0iMjAwMDAiLz48YTpzYXRNb2QgdmFsPSIyNTUwMDAiLz48L2E6c2NoZW1lQ2xyPjwvYTpncz48L2E6Z3NMc3Q+PGE6cGF0aCBwYXRoPSJjaXJjbGUiPjxhOmZpbGxUb1JlY3QgbD0iNTAwMDAiIHQ9Ii04MDAwMCIgcj0iNTAwMDAiIGI9IjE4MDAwMCIvPjwvYTpwYXRoPjwvYTpncmFkRmlsbD48YTpncmFkRmlsbCByb3RXaXRoU2hhcGU9IjEiPjxhOmdzTHN0PjxhOmdzIHBvcz0iMCI+PGE6c2NoZW1lQ2xyIHZhbD0icGhDbHIiPjxhOnRpbnQgdmFsPSI4MDAwMCIvPjxhOnNhdE1vZCB2YWw9IjMwMDAwMCIvPjwvYTpzY2hlbWVDbHI+PC9hOmdzPjxhOmdzIHBvcz0iMTAwMDAwIj48YTpzY2hlbWVDbHIgdmFsPSJwaENsciI+PGE6c2hhZGUgdmFsPSIzMDAwMCIvPjxhOnNhdE1vZCB2YWw9IjIwMDAwMCIvPjwvYTpzY2hlbWVDbHI+PC9hOmdzPjwvYTpnc0xzdD48YTpwYXRoIHBhdGg9ImNpcmNsZSI+PGE6ZmlsbFRvUmVjdCBsPSI1MDAwMCIgdD0iNTAwMDAiIHI9IjUwMDAwIiBiPSI1MDAwMCIvPjwvYTpwYXRoPjwvYTpncmFkRmlsbD48L2E6YmdGaWxsU3R5bGVMc3Q+PC9hOmZtdFNjaGVtZT48L2E6dGhlbWVFbGVtZW50cz48YTpvYmplY3REZWZhdWx0cz48YTpzcERlZj48YTpzcFByLz48YTpib2R5UHIvPjxhOmxzdFN0eWxlLz48YTpzdHlsZT48YTpsblJlZiBpZHg9IjEiPjxhOnNjaGVtZUNsciB2YWw9ImFjY2VudDEiLz48L2E6bG5SZWY+PGE6ZmlsbFJlZiBpZHg9IjMiPjxhOnNjaGVtZUNsciB2YWw9ImFjY2VudDEiLz48L2E6ZmlsbFJlZj48YTplZmZlY3RSZWYgaWR4PSIyIj48YTpzY2hlbWVDbHIgdmFsPSJhY2NlbnQxIi8+PC9hOmVmZmVjdFJlZj48YTpmb250UmVmIGlkeD0ibWlub3IiPjxhOnNjaGVtZUNsciB2YWw9Imx0MSIvPjwvYTpmb250UmVmPjwvYTpzdHlsZT48L2E6c3BEZWY+PGE6bG5EZWY+PGE6c3BQci8+PGE6Ym9keVByLz48YTpsc3RTdHlsZS8+PGE6c3R5bGU+PGE6bG5SZWYgaWR4PSIyIj48YTpzY2hlbWVDbHIgdmFsPSJhY2NlbnQxIi8+PC9hOmxuUmVmPjxhOmZpbGxSZWYgaWR4PSIwIj48YTpzY2hlbWVDbHIgdmFsPSJhY2NlbnQxIi8+PC9hOmZpbGxSZWY+PGE6ZWZmZWN0UmVmIGlkeD0iMSI+PGE6c2NoZW1lQ2xyIHZhbD0iYWNjZW50MSIvPjwvYTplZmZlY3RSZWY+PGE6Zm9udFJlZiBpZHg9Im1pbm9yIj48YTpzY2hlbWVDbHIgdmFsPSJ0eDEiLz48L2E6Zm9udFJlZj48L2E6c3R5bGU+PC9hOmxuRGVmPjwvYTpvYmplY3REZWZhdWx0cz48YTpleHRyYUNsclNjaGVtZUxzdC8+PC9hOnRoZW1lPlBLAwQKAAAAAADzhmpRVfQElFoEAABaBAAADQAAAHhsL3N0eWxlcy54bWw8P3htbCB2ZXJzaW9uPSIxLjAiIGVuY29kaW5nPSJVVEYtOCIgc3RhbmRhbG9uZT0ieWVzIj8+DQo8c3R5bGVTaGVldCB4bWxucz0iaHR0cDovL3NjaGVtYXMub3BlbnhtbGZvcm1hdHMub3JnL3NwcmVhZHNoZWV0bWwvMjAwNi9tYWluIiB4bWxuczp2dD0iaHR0cDovL3NjaGVtYXMub3BlbnhtbGZvcm1hdHMub3JnL29mZmljZURvY3VtZW50LzIwMDYvZG9jUHJvcHNWVHlwZXMiPjxudW1GbXRzIGNvdW50PSIxIj48bnVtRm10IG51bUZtdElkPSI1NiIgZm9ybWF0Q29kZT0iJnF1b3Q75LiK5Y2IL+S4i+WNiCAmcXVvdDtoaCZxdW90O+aZgiZxdW90O21tJnF1b3Q75YiGJnF1b3Q7c3MmcXVvdDvnp5IgJnF1b3Q7Ii8+PC9udW1GbXRzPjxmb250cyBjb3VudD0iMSI+PGZvbnQ+PHN6IHZhbD0iMTIiLz48Y29sb3IgdGhlbWU9IjEiLz48bmFtZSB2YWw9IkNhbGlicmkiLz48ZmFtaWx5IHZhbD0iMiIvPjxzY2hlbWUgdmFsPSJtaW5vciIvPjwvZm9udD48L2ZvbnRzPjxmaWxscyBjb3VudD0iMiI+PGZpbGw+PHBhdHRlcm5GaWxsIHBhdHRlcm5UeXBlPSJub25lIi8+PC9maWxsPjxmaWxsPjxwYXR0ZXJuRmlsbCBwYXR0ZXJuVHlwZT0iZ3JheTEyNSIvPjwvZmlsbD48L2ZpbGxzPjxib3JkZXJzIGNvdW50PSIxIj48Ym9yZGVyPjxsZWZ0Lz48cmlnaHQvPjx0b3AvPjxib3R0b20vPjxkaWFnb25hbC8+PC9ib3JkZXI+PC9ib3JkZXJzPjxjZWxsU3R5bGVYZnMgY291bnQ9IjEiPjx4ZiBudW1GbXRJZD0iMCIgZm9udElkPSIwIiBmaWxsSWQ9IjAiIGJvcmRlcklkPSIwIi8+PC9jZWxsU3R5bGVYZnM+PGNlbGxYZnMgY291bnQ9IjEiPjx4ZiBudW1GbXRJZD0iMCIgZm9udElkPSIwIiBmaWxsSWQ9IjAiIGJvcmRlcklkPSIwIiB4ZklkPSIwIiBhcHBseU51bWJlckZvcm1hdD0iMSIvPjwvY2VsbFhmcz48Y2VsbFN0eWxlcyBjb3VudD0iMSI+PGNlbGxTdHlsZSBuYW1lPSJOb3JtYWwiIHhmSWQ9IjAiIGJ1aWx0aW5JZD0iMCIvPjwvY2VsbFN0eWxlcz48ZHhmcyBjb3VudD0iMCIvPjx0YWJsZVN0eWxlcyBjb3VudD0iMCIgZGVmYXVsdFRhYmxlU3R5bGU9IlRhYmxlU3R5bGVNZWRpdW05IiBkZWZhdWx0UGl2b3RTdHlsZT0iUGl2b3RTdHlsZU1lZGl1bTQiLz48L3N0eWxlU2hlZXQ+UEsDBAoAAAAAAPOGalE265b9kgcAAJIHAAATAAAAW0NvbnRlbnRfVHlwZXNdLnhtbDw/eG1sIHZlcnNpb249IjEuMCIgZW5jb2Rpbmc9IlVURi04IiBzdGFuZGFsb25lPSJ5ZXMiPz4NCjxUeXBlcyB4bWxucz0iaHR0cDovL3NjaGVtYXMub3BlbnhtbGZvcm1hdHMub3JnL3BhY2thZ2UvMjAwNi9jb250ZW50LXR5cGVzIiB4bWxuczp4c2Q9Imh0dHA6Ly93d3cudzMub3JnLzIwMDEvWE1MU2NoZW1hIiB4bWxuczp4c2k9Imh0dHA6Ly93d3cudzMub3JnLzIwMDEvWE1MU2NoZW1hLWluc3RhbmNlIj48RGVmYXVsdCBFeHRlbnNpb249InhtbCIgQ29udGVudFR5cGU9ImFwcGxpY2F0aW9uL3htbCIvPjxEZWZhdWx0IEV4dGVuc2lvbj0iYmluIiBDb250ZW50VHlwZT0iYXBwbGljYXRpb24vdm5kLm1zLWV4Y2VsLnNoZWV0LmJpbmFyeS5tYWNyb0VuYWJsZWQubWFpbiIvPjxEZWZhdWx0IEV4dGVuc2lvbj0idm1sIiBDb250ZW50VHlwZT0iYXBwbGljYXRpb24vdm5kLm9wZW54bWxmb3JtYXRzLW9mZmljZWRvY3VtZW50LnZtbERyYXdpbmciLz48RGVmYXVsdCBFeHRlbnNpb249ImRhdGEiIENvbnRlbnRUeXBlPSJhcHBsaWNhdGlvbi92bmQub3BlbnhtbGZvcm1hdHMtb2ZmaWNlZG9jdW1lbnQubW9kZWwrZGF0YSIvPjxEZWZhdWx0IEV4dGVuc2lvbj0iYm1wIiBDb250ZW50VHlwZT0iaW1hZ2UvYm1wIi8+PERlZmF1bHQgRXh0ZW5zaW9uPSJwbmciIENvbnRlbnRUeXBlPSJpbWFnZS9wbmciLz48RGVmYXVsdCBFeHRlbnNpb249ImdpZiIgQ29udGVudFR5cGU9ImltYWdlL2dpZiIvPjxEZWZhdWx0IEV4dGVuc2lvbj0iZW1mIiBDb250ZW50VHlwZT0iaW1hZ2UveC1lbWYiLz48RGVmYXVsdCBFeHRlbnNpb249IndtZiIgQ29udGVudFR5cGU9ImltYWdlL3gtd21mIi8+PERlZmF1bHQgRXh0ZW5zaW9uPSJqcGciIENvbnRlbnRUeXBlPSJpbWFnZS9qcGVnIi8+PERlZmF1bHQgRXh0ZW5zaW9uPSJqcGVnIiBDb250ZW50VHlwZT0iaW1hZ2UvanBlZyIvPjxEZWZhdWx0IEV4dGVuc2lvbj0idGlmIiBDb250ZW50VHlwZT0iaW1hZ2UvdGlmZiIvPjxEZWZhdWx0IEV4dGVuc2lvbj0idGlmZiIgQ29udGVudFR5cGU9ImltYWdlL3RpZmYiLz48RGVmYXVsdCBFeHRlbnNpb249InBkZiIgQ29udGVudFR5cGU9ImFwcGxpY2F0aW9uL3BkZiIvPjxEZWZhdWx0IEV4dGVuc2lvbj0icmVscyIgQ29udGVudFR5cGU9ImFwcGxpY2F0aW9uL3ZuZC5vcGVueG1sZm9ybWF0cy1wYWNrYWdlLnJlbGF0aW9uc2hpcHMreG1sIi8+PE92ZXJyaWRlIFBhcnROYW1lPSIveGwvd29ya2Jvb2sueG1sIiBDb250ZW50VHlwZT0iYXBwbGljYXRpb24vdm5kLm9wZW54bWxmb3JtYXRzLW9mZmljZWRvY3VtZW50LnNwcmVhZHNoZWV0bWwuc2hlZXQubWFpbit4bWwiLz48T3ZlcnJpZGUgUGFydE5hbWU9Ii94bC93b3Jrc2hlZXRzL3NoZWV0MS54bWwiIENvbnRlbnRUeXBlPSJhcHBsaWNhdGlvbi92bmQub3BlbnhtbGZvcm1hdHMtb2ZmaWNlZG9jdW1lbnQuc3ByZWFkc2hlZXRtbC53b3Jrc2hlZXQreG1sIi8+PE92ZXJyaWRlIFBhcnROYW1lPSIveGwvdGhlbWUvdGhlbWUxLnhtbCIgQ29udGVudFR5cGU9ImFwcGxpY2F0aW9uL3ZuZC5vcGVueG1sZm9ybWF0cy1vZmZpY2Vkb2N1bWVudC50aGVtZSt4bWwiLz48T3ZlcnJpZGUgUGFydE5hbWU9Ii94bC9zdHlsZXMueG1sIiBDb250ZW50VHlwZT0iYXBwbGljYXRpb24vdm5kLm9wZW54bWxmb3JtYXRzLW9mZmljZWRvY3VtZW50LnNwcmVhZHNoZWV0bWwuc3R5bGVzK3htbCIvPjxPdmVycmlkZSBQYXJ0TmFtZT0iL2RvY1Byb3BzL2NvcmUueG1sIiBDb250ZW50VHlwZT0iYXBwbGljYXRpb24vdm5kLm9wZW54bWxmb3JtYXRzLXBhY2thZ2UuY29yZS1wcm9wZXJ0aWVzK3htbCIvPjxPdmVycmlkZSBQYXJ0TmFtZT0iL2RvY1Byb3BzL2FwcC54bWwiIENvbnRlbnRUeXBlPSJhcHBsaWNhdGlvbi92bmQub3BlbnhtbGZvcm1hdHMtb2ZmaWNlZG9jdW1lbnQuZXh0ZW5kZWQtcHJvcGVydGllcyt4bWwiLz48L1R5cGVzPlBLAwQKAAAAAADzhmpRSmoR+UwCAABMAgAACwAAAF9yZWxzLy5yZWxzPD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiIHN0YW5kYWxvbmU9InllcyI/Pg0KPFJlbGF0aW9uc2hpcHMgeG1sbnM9Imh0dHA6Ly9zY2hlbWFzLm9wZW54bWxmb3JtYXRzLm9yZy9wYWNrYWdlLzIwMDYvcmVsYXRpb25zaGlwcyI+PFJlbGF0aW9uc2hpcCBJZD0icklkMiIgVHlwZT0iaHR0cDovL3NjaGVtYXMub3BlbnhtbGZvcm1hdHMub3JnL3BhY2thZ2UvMjAwNi9yZWxhdGlvbnNoaXBzL21ldGFkYXRhL2NvcmUtcHJvcGVydGllcyIgVGFyZ2V0PSJkb2NQcm9wcy9jb3JlLnhtbCIvPjxSZWxhdGlvbnNoaXAgSWQ9InJJZDMiIFR5cGU9Imh0dHA6Ly9zY2hlbWFzLm9wZW54bWxmb3JtYXRzLm9yZy9vZmZpY2VEb2N1bWVudC8yMDA2L3JlbGF0aW9uc2hpcHMvZXh0ZW5kZWQtcHJvcGVydGllcyIgVGFyZ2V0PSJkb2NQcm9wcy9hcHAueG1sIi8+PFJlbGF0aW9uc2hpcCBJZD0icklkMSIgVHlwZT0iaHR0cDovL3NjaGVtYXMub3BlbnhtbGZvcm1hdHMub3JnL29mZmljZURvY3VtZW50LzIwMDYvcmVsYXRpb25zaGlwcy9vZmZpY2VEb2N1bWVudCIgVGFyZ2V0PSJ4bC93b3JrYm9vay54bWwiLz48L1JlbGF0aW9uc2hpcHM+UEsDBAoAAAAAAPOGalHQP2TdLQIAAC0CAAAaAAAAeGwvX3JlbHMvd29ya2Jvb2sueG1sLnJlbHM8P3htbCB2ZXJzaW9uPSIxLjAiIGVuY29kaW5nPSJVVEYtOCIgc3RhbmRhbG9uZT0ieWVzIj8+DQo8UmVsYXRpb25zaGlwcyB4bWxucz0iaHR0cDovL3NjaGVtYXMub3BlbnhtbGZvcm1hdHMub3JnL3BhY2thZ2UvMjAwNi9yZWxhdGlvbnNoaXBzIj48UmVsYXRpb25zaGlwIElkPSJySWQxIiBUeXBlPSJodHRwOi8vc2NoZW1hcy5vcGVueG1sZm9ybWF0cy5vcmcvb2ZmaWNlRG9jdW1lbnQvMjAwNi9yZWxhdGlvbnNoaXBzL3dvcmtzaGVldCIgVGFyZ2V0PSJ3b3Jrc2hlZXRzL3NoZWV0MS54bWwiLz48UmVsYXRpb25zaGlwIElkPSJySWQyIiBUeXBlPSJodHRwOi8vc2NoZW1hcy5vcGVueG1sZm9ybWF0cy5vcmcvb2ZmaWNlRG9jdW1lbnQvMjAwNi9yZWxhdGlvbnNoaXBzL3RoZW1lIiBUYXJnZXQ9InRoZW1lL3RoZW1lMS54bWwiLz48UmVsYXRpb25zaGlwIElkPSJySWQzIiBUeXBlPSJodHRwOi8vc2NoZW1hcy5vcGVueG1sZm9ybWF0cy5vcmcvb2ZmaWNlRG9jdW1lbnQvMjAwNi9yZWxhdGlvbnNoaXBzL3N0eWxlcyIgVGFyZ2V0PSJzdHlsZXMueG1sIi8+PC9SZWxhdGlvbnNoaXBzPlBLAQIUAAoAAAAAAPOGalHWknwRWgEAAFoBAAARAAAAAAAAAAAAAAAAAAAAAABkb2NQcm9wcy9jb3JlLnhtbFBLAQIUAAoAAAAAAPOGalGxLi/VMwIAADMCAAAQAAAAAAAAAAAAAAAAAIkBAABkb2NQcm9wcy9hcHAueG1sUEsBAhQACgAAAAAA84ZqUfwR/M3HBAAAxwQAABgAAAAAAAAAAAAAAAAA6gMAAHhsL3dvcmtzaGVldHMvc2hlZXQxLnhtbFBLAQIUAAoAAAAAAPOGalFHFBtxQwEAAEMBAAAPAAAAAAAAAAAAAAAAAOcIAAB4bC93b3JrYm9vay54bWxQSwECFAAKAAAAAADzhmpRMA+Ia94dAADeHQAAEwAAAAAAAAAAAAAAAABXCgAAeGwvdGhlbWUvdGhlbWUxLnhtbFBLAQIUAAoAAAAAAPOGalFV9ASUWgQAAFoEAAANAAAAAAAAAAAAAAAAAGYoAAB4bC9zdHlsZXMueG1sUEsBAhQACgAAAAAA84ZqUTbrlv2SBwAAkgcAABMAAAAAAAAAAAAAAAAA6ywAAFtDb250ZW50X1R5cGVzXS54bWxQSwECFAAKAAAAAADzhmpRSmoR+UwCAABMAgAACwAAAAAAAAAAAAAAAACuNAAAX3JlbHMvLnJlbHNQSwECFAAKAAAAAADzhmpR0D9k3S0CAAAtAgAAGgAAAAAAAAAAAAAAAAAjNwAAeGwvX3JlbHMvd29ya2Jvb2sueG1sLnJlbHNQSwUGAAAAAAkACQA+AgAAiDkAAAAA'
var buf = Buffer.from(base64input, 'base64');
console.log(buf)
const header = buf.toString()
if (header.indexOf(" ContentType=\"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml\"") > 0)
console.log("Excel XSLX")
else if (header.indexOf(" ContentType=\"application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml\"") > 0)
console.log("Word DOCX")
else if (header.indexOf("ContentType=\"application/vnd.openxmlformats-officedocument.presentationml.presentation.main+xml\"") > 0)
console.log("PowerPoint PPTX")
I can't guarantee that it will allways work. With the example from the question it works, but with a DOCX file on my PC it didn't. I'll update this answer as soon as I know more.
I have few files which i did tar.gz.
As this file can get too big thus I used the Linux split.
As this needs to be transferred to a different machine i have used s3 bucket to transfer these files. I used application/octet-stream content-type to upload these files.
The files when downloaded shows exactly same size as original size thus no bytes are lost.
now when I do cat downloaded_files_* > tarball.tar.gz the size is exactly as the original file
but only the part with _aa gets extracted.
i checked the type of files
file downloaded_files_aa
this is tar zip file(gzip compressed data, from Unix, last modified: Sun May 17 15:00:41 2020)
but all other files are data files
I am wondering how can i get the files.
Note: Http upload via API gateway done to upload the files to s3
================================
Just putting my debugging finding with a hope probably it will help someone facing same problem.
As we wanted to use API gateway out upload calls were done http calls. This is something which is not using regular aws sdk.
https://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-post-example.html
Code Samples: https://docs.aws.amazon.com/AmazonS3/latest/API/samples/AWSS3SigV4JavaSamples.zip
After some debugging, we found this leg was working fine.
As the machine which we wanted to download the files had direct access to s3 we used the aws sdk for downloading the files.
This is the URL
https://docs.aws.amazon.com/AmazonS3/latest/dev/RetrievingObjectUsingJava.html
this code does not work well, though it showed the exact file size download as upload the file lost some information. The code also complained about still pending bytes. Some changes were done to get rid of error but it never worked.
the code which I found here is working like magic
InputStream reader = new BufferedInputStream(
object.getObjectContent());
File file = new File("localFilename");
OutputStream writer = new BufferedOutputStream(new FileOutputStream(file));
int read = -1;
while ( ( read = reader.read() ) != -1 ) {
writer.write(read);
}
writer.flush();
writer.close();
reader.close();
This code also make the download much faster then our previous approach.
I have copied the files from remote server to Azure Blob Storage using Azure Data Factory Copy Activity (Binary file copy). Those files are json files and txt files. I would like to change the encoding of the files to UTF-16.
I know its possible to change the encoding while copying the text files from remote server by just mentioning the encoding as UTF-16 in sink side in Copy Activity.I have implemented the copy activity which takes every files as txt file and it was working file. Sometimes, i get some error related to row delimiter and i changed the implementation to binary copy.Now, i would like to change the encoding of those files from UTF-8 to UTF-16. I couldn't find any way to do it.
Any help/suggestions would be appreciated.
If a file is stored in blob storage, you cannot directly change it's content-encoding, even if you set the blob property of content-encoding.
The way(via code or manually) to do this is that you should download it -> encode it with UTF-16 -> then upload it again.
I am trying to read a CSV file from a local drive using the Apache PoI API.
FileInputStream fInputStream = new FileInputStream(inputName);
Workbook workBook = WorkbookFactory.create(fInputStream);
When I try to read a CSV file, which is created in Windows, the API reads it perfectly.
Whereas, when I have the CSV file(which is DOWNLOADED from an UNIX environment) and read it in windows environment, I get the below exception.
java.lang.IllegalArgumentException: Your InputStream was neither an OLE2 stream, nor an OOXML stream
at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:81)
Can somebody throw some inputs on this behavior.
I have the following code to open Excel template file and save it as .xlsx file and I get the error below when I try to open the new file. Please help to resolve this.
Excel cannot open the file ‘sa123.xlsx’ because the file format or the extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.
string templateName = "C:\\temp\\sa123.xltx";
byte[] docAsArray = File.ReadAllBytes(templateName);
using (MemoryStream stream = new MemoryStream())
{
stream.Write(docAsArray, 0, docAsArray.Length); // THIS performs doc copy
File.WriteAllBytes("C:\\temp\\sa123.xlsx", stream.ToArray());
}
In order to do this you will need to use the Open XML SDK 2.0. Below is a snippet of code that worked for me when I tried it:
byte[] byteArray = File.ReadAllBytes("C:\\temp\\sa123.xltx");
using (MemoryStream stream = new MemoryStream())
{
stream.Write(byteArray, 0, (int)byteArray.Length);
using (SpreadsheetDocument spreadsheetDoc = SpreadsheetDocument.Open(stream, true))
{
// Change from template type to workbook type
spreadsheetDoc.ChangeDocumentType(SpreadsheetDocumentType.Workbook);
}
File.WriteAllBytes("C:\\temp\\sa123.xlsx", stream.ToArray());
}
What this code does is it takes your template file and opens it into a SpreadsheetDocument object. The type of this object is Template, but since you want it as a Workbook you call the ChangeDocumentType method to change it from a Template to a Workbook. This will work since the underlying XML is the same between a .xltx and a .xlsx file and it was just the type that was causing you an issue.
Excel sees the .xlsx extension and tries to open it as a worksheet file. But it isn't. It's a template file. When you have a template open in Excel and save it as a .xlsx file, it converts it to the worksheet format. What you are doing is the same as changing the extension in the filename. Try it in Windows Explorer and you will get the same result.
I believe you should be able to accomplish what you want by using the Excel Object Model. I have not used this though.